Can-closure.



W. H. MONUTT.

CAN CLOSURE.

APPLICATION IILED SEPT. 6,1913.

1,1 14, 1 65, Patented 0013.20, 1914.

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UNITED STATES PATENT OFFICE.

WILLIAM H. MCNU'IT, OF NEW YORK, N. Y. ASSIGNOR T CARRIE EMMA OWEN, 0F

' FRANKLIN, NEW YORK.

GAN-CLOSURE To all whom itmag concern at once return to closed position; which valve will have its seat-engaging portion formed of soft yielding material such as soft rubber to insure a perfectly tight closure preventing any possible escape-of either liquid or vapor from the can.

A further object. of the invention is tov provide with such a form of valve, convenient means for graspin the valve'member to open the valve and old it in open posit-ion; .which arrangement will provide means for strongly retaining the yieldable.

' seat portion of the valve in the required position, and which further will permit the seat portion of the valve to be easily removed and another substituted.

' In the accompanying drawing illustrating one'embodiment of my invention, Figure 1 shows the upper portion of a can with my invention applied thereto, partly in section, and partly in elevation; Fig. 2 is a section taken through the valve at right angles to Fig. l; and Fig. 3 shows the valve in open position.

In the drawing I show a can 3 having its vtop 4 provided with an opening at which is suitablysecured a bushing 5.

This bushing 15 shown as externally threaded to screw into an internally threaded sput 6 that is secured metal such as brass, is secured to thetop vby suitable means such as rivets. The bushing projects some distance above the can top, and at its upper end is-provided with a valve seat, by having the end portion flaring as shown at 7.

A filler tube 8 of flame-proof construction, preferably formed of finely'perforated sheet at its upper end in the bore of the bushing 5 at the lower portion thereof, and projects a considerable distance down into the can. The lower end of the'tube 8 is shown as closed by a cap 9 Specification 01' Letters Patent.

Patented Get. 20, 1914.

Application filed September 6, 1913. Serial No. 788,420.

which is fitted thereon, provided with a central opening 10. Inside of the tube 8 is placed a valve rod 12, that projects loosely through-the opening 10 in the cap 9 for some distance, so as to permit its upper end 'portion to be brought adjacent the sides of the tube and bushing.

A coil spring 13 is arranged around the lower extension of the valve rod 12 with its upper end in engagement with the lower face of the cap 9 and its lower end secured to the rod 12, belng shown as resting on nuts 14 on the threaded end portion of the rod. On the upper end of the valve rod 12 is mounted a yielding valve member 15 of'soft rubber or other suitable yielding material, which is held normally in engagement with the seat portion 7 ofvthe-bushing 5 by the tension. of

the said cap being the coil spring 13, which latter is put under compression by the nuts 14 to draw the rod 12 downward, the said valve having an approximately hemi-spherical shape. Instead of mounting this valve 15 directly on the rod 12, I p ovide a hinged connection with the rod, so that when the valve is raised from its seat by suitable means, such'as a bail 16, the valve can be swung on the rod and drawn to one side to assist in holding it open while the can is being emptied.

I provide a head 17 that is pivoted to the end portion of the valve rod 12, and from the upper face of the head projects a stem 18 that passes through the bore of the valve 15,

and is threaded at its upper end to receivea nut 19 that will serve to lock the valve on the head as shown.

For the purpose of providing an anchorage forthe bail l6'on the valve, and also to properly protect the top of the soft rubber valve 15, I provide a cap 21 having a central hole to receive the stem 18 of the valve, the flange 22 of the cap extending a short distance around the upper edge of the valve 15. It will be understood that the tightenof the nut 19 will serve to confine the valve between this cap 21 and the head 17, whereby only the seatengaging portion of the valve 15 is exposed, and the valve, especially its upper marginal portion, is; protot-ted and strengthened by said cap. On the upper face of the cap 21 I arrange apertured ears 23 and 24, in which is pivotally -'1nounted the bail 1 6; and these ears are so arranged that when the cap is securedin position, the axis on which the bail swmgs IS "swing, as indicated in Fig. 3.

parallel to the axis on which the head .17 swings on the valve rod 12.

In the use of the device, to open the valve the bail 16 is grasped by the o erator and pulled upwardly and also latera ly to either side in the direction in which the bail can 7 This will cause the valve member to swing on the rod and in the same direction since these two axes are arallel. This upward movement of the va ve rod will increase the tension of the spring 13, and obviously as soon as the valve is released it will be returned to normal position; and being of soft rubber, the valve will yield to allow for any unevenness of the seat and .Will insure a very tight closure.

The coil spring 13 being located below the bottom of the filler tube, will be protected fromnanjp injury; and being usually immersedd-ir the liquid in the tank ,will be protected from any chemical actionof the air. This sprm'g will also serve to retain the cap 9 closing thelower end of the filler tube in its proper position, without 0 her fastening means for the cap being neeced.

When the soft rubber valve seat becomes Worn, it can be very easily and quickly replaced, by simply unscrewing the nut 19 and removing the valve cap and bail. During this operation the stem 12 can be grasped by the fingers or a suitable tool or device.

Having thus described my invention, what I claim is:

l. The combination of a can provided with a bushing secured in an opening in the can topand having a valve seat at its upper projecting end, a flame-proof tube project" ing down from said bushing a considerable distance into the can, a cap closing the lower end of the tube and provided with aceutral opening, a valve rod in the tube projecting down through said cap opening, a coil spring on the rod below the cap fast to the lower end of the rod and having its upper end engaging the lower face of the cap to draw the rod downward, a globular valve hinge on the upper end portion of said rod and retracted to seat on the said valve seat by said spring and normally retained seated thereby, and a bail hinged to the top of the valve with its axis parallel with the axis of the valve.

2. The combination of a can provided with a bushing secured in an opening in the can top and having a valve seat at its upper projecting end, a flame-proof tube pro ecting down from said bushing a considerable distance into the can, a cap closing the lower end of the tube and provided with a central opening, a valve rod in the tube projecting down through said cap opening,

a coil spring on the rod below the cap fast to the lower end of the rod and having its upper end engaging the lower face of the cap to draw the rod downward, a head hinged to the upper end of the rod and having a threaded stem projecting upward a globular valve having a bore thrpugh which the threaded stem projects, a cap engaging the top of the globular valve and having an opening through which said threaded stem projects, a not on the threaded stem confining the valve betwecn the second-named cap and head, and a bail hinged to the top face of the valve cap.

8. The combination of a can provided with.

a bushing secured in an opening in the can top and having a valve scat at its upper projecting end, a flamc proof tube projecting down from said bushing into the can, a closure for the lower end of the tube, a valve rod in the tube, a spring connecting the rod with the lower end of the tube and arranged to draw the rod downward, a head hinged to the upper cnd of the rod and having a threaded stem projecting upward, a globular valve having a bore through which the threaded stem projects, a cap engaging the top of the globular valve and having an opening through which said threaded stem projects, a nut on the threaded stem confining the valve between the said cap and head, and a bail hinged to the top face of the valve cap.

l. The combination of a can provided with a bushing secured in an opening in the can top and havinga valve seat at its upper projecting end, a flame-proof tubeprojecting down from said bushing a considerable distance into the can, a cap closing the lower end of the tube and provided with a central. opening. a valve rod in the tube projcctin'g down through said cap opening, a

coil spring on the rodbclow the cap fast to,

said cap and having its upprr o'pd cmruging the lower face of the cap to d aw the rod downward, a head, hinged to the upper end of the valve rod and having a threaded stem projecting upward. a globular valve hav1ug,

a bore through which the threaded stem projects, amp engaging the top of the globular valve and having an opening through which said threaded stem projgcts, a nut on the threaded stem confining the valve between the second named cap and head. and a bail hinged to the top face of the valve cap with its axis parallel with the of the valve.

WILLlAhLl H. MoNUTT.

Vi itnesses Grins. E. JONES, AGNES OLSEN.

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